I think the oldest CPU's I have in the house would be the 6507 in my Atari VCS or a Z-80 in my old IC collection. And a pentium 386.
It would be hard to do that. They are deep in the attic and basement. And I don't want to take my Atari apart right now. Also have a couple c2d's, Thunderbird 1100, P2 350, and p3 500 sitting around. Oh, and a 2.4G Northwood.
No need to take apart the Atari of course... That's truly old skool, don't think anyone here can beat yours.
Great collection! I have the Cyrix MII, the Pentium 166MMX and the Pentium 200MMX as well. Even the Pentium II 400. I didn't buy those things - these were given by someone. Newer microcontrollers (not processors) are with these speeds as well. I wonder how would an STM32F4/7 or a PIC32MZ compares to those classic gems?